INSTALLATION MANUALREC 72-CELL MOdULESInstallation instructions for all REC Peak Energy 72 and REC TwinPeak 72 solar panels certified according to IEC 61215 / 61730:

REC Peak Energy 72 Series REC TwinPeak 72 Series REC TwinPeak 72 XV Series REC TwinPeak 2S 72 Series REC TwinPeak 2S 72 XV Series REC TwinPeak 2S 72 Bifacial XV Series

REC Installation Manual - 72-cell Products - IEC 61215 /61730

Rev A - 06.17 Ref: NE-06-212

CONTENTSCONTENTS 2

List of figures 2INTRODUCTION 3SAFETY MEASURES 4

Safety in the working area 4Panel Handling 4

ELECTRICAL INSTALLATION 5Electrical Requirements 5

MECHANICAL INSTALLATION 5Fire guidelines 5Orientation 5Environmental factors 5

PANEL INSTALLATION 6Rail specifications 6Clamp specifications 6Mounting methods: REC Peak Energy 72 Series & REC Peak Energy 72 XV Series panels 7Mounting methods: REC TwinPeak 72 & REC TwinPeak 72 XV Series 8Mounting methods: REC TwinPeak 2S 72, REC TwinPeak 2S 72 XV & REC TwinPeak 2S 72 XV Bifacial Series panels 9Drainage holes 10Grounding 10

CONNECTIONS AND CONNECTORS 11MAINTENANCE 12

Cleaning instructions 12Recycling 12Disposal of old electrical and electronic equipment 12

PANEL INFORMATION 13Technical characteristics: REC Peak Energy 72 Series 13Technical characteristics: REC TwinPeak 72 Series & REC TwinPeak 72 XV Series 14Technical characteristics: REC TwinPeak 2S 72 Series & REC TwinPeak 2S 72 XV Series 15Technical characteristics: REC TwinPeak 2S 72 Bifacial XV Series 16

ANNEX 1: INSTALLATIONS ON WATER PLATFORMS 17ANNEX 2: INSTALLATION OF BIFACIAL PANELS 18EC DECLARATION OF CONFORMITY 19DOCUMENT HISTORY 20

Fig. 1: Example of rail cross-section 6Fig. 2: Panel mounting: Rails parallel to long side 6Fig. 3: Panel mounting: Rails parallel to short side 6Fig. 4: Clamp specifications: End and mid-clamps 6Fig. 5: Clamping the frame to rail 6Fig. 6: Clamping Zones: REC Peak Energy 72 Series 7Fig. 7: Mounting holes: REC Peak Energy 72 Series 7Fig. 8: Mounting hole specifications: REC Peak Energy 72 Series 7Fig. 9: Mounting hole installation: REC Peak Energy 72 Series 7Fig. 10: Clamping Zones: REC TwinPeak 72 Series 8Fig. 11: Mounting holes: REC TwinPeak 72 8Fig. 12: Mounting hole specifications: REC TwinPeak 72 8Fig. 13: Mounting hole installation: REC TwinPeak 72 8

Fig. 14: Clamping Zones: REC TwinPeak 2S 72 Series 9Fig. 15: Mounting holes: REC TwinPeak 2S 72 9Fig. 16: Mounting hole specifications: REC TwinPeak 2S 72 9Fig. 17: Mounting hole installation: REC TwinPeak 2S 72 9Fig. 18: Drainage holes 10Fig. 19: Grounding specifications 10Fig. 20: Grounding holes 10Fig. 21: Connector mating matrix 11Fig. 22: Minimum cable bend radius 11Fig. 23: WEEE symbol 12Fig. 24: Panel dimensions: REC Peak Energy 72 Series 13Fig. 25: Panel dimensions: REC TwinPeak 72 Series 14Fig. 26: Panel dimensions: REC TwinPeak 2S 72 Series 15

LIST OF FIgURES

3REC Installation Manual - 72-cell Products - IEC 61215 /61730Rev A - 06.17 Ref: NE-06-21

INTRODUCTIONThank you for choosing REC photovoltaic panels for your installation. REC solar panels are ideal for delivering long-lasting and reliable power output. They have been created through intelligent design and are manufactured to the highest quality and environmental standards. With correct installation and maintenance, REC panels will provide clean, renewable energy for many years.Please read this entire manual carefully. It contains critical information on safety, as well as detailed instructions for the installation, operation and maintenance of the panels. Failure to follow these procedures will invalidate the warranty (available to download via www.recgroup.com/warranty). Review all instructions and safety notes before working on the system. Failure to do so may lead to injury or damage to property.

HOW TO USE THIS MANUALThis installation manual describes the procedures for the terrestrial mounting of all REC solar panels of a 72-cell size of the REC Peak Energy and REC TwinPeak product families (as indicated by the use of the suffix 72 in the panel name) certified according to IEC 61215 and IEC 61730 standards in a photovoltaic array. This includes panels with a white or black backsheet, a silver or black frame, for a maximum system voltage of 1000 V or 1500 V, and/or square or rectangular monocrystalline or multicrystalline cells. The installed panel is considered to be in compliance with IEC 61215 and IEC 61730 only when mounted in the manner specified by this installation manual. Note that any panel without a frame (laminate) is not considered to comply with the requirements of IEC 61215 and IEC 61730 unless mechanically installed with hardware that has been tested and evaluated with the panel under this standard or by a field inspection certifying that the installed panel complies with the requirements of IEC 61215 and IEC 61730.Except where specifically stated, the information and drawings within this manual refer to all frame, backsheet, and cell types; the illustrations are meant to be a generic representation of the instructions detailed in the text regardless of the color depicted. Review this entire manual before commencing installation of the panels and ensure you are working from the latest version. Throughout the manual, you will see icons which highlight important information or notes:

Indicates potential for damage to the array, property or personal safety.

Indicates important notes on best practice to help with the installation.

For further information on installation procedures, please call your panel distributor or contact your local REC Solar office. Details can be found at: www.recgroup.com/contact.

YOUR RESPONSIBILITY AS AN INSTALLERInstallers are responsible for the safe and effective installation and operation of the photovoltaic system and for adhering to all applicable local and national standards and regulations. Prior to installation, check all current regulations and permits concerning solar installations and ensure all local directives are observed. Furthermore, installers are responsible for the following points: Ensuring the REC panels are in a suitable condition for use and appropriate for the particular installation and environment, Using only parts that comply with the specifications set out in this manual, Ensuring a safe installation of all aspects of the electrical array.

All equipment should be properly maintained and inspected prior to use.

SUPPORTDo not attempt to install REC solar panels when you are unsure of the procedure or suitability. For questions or guidance with your installation, please call your distributor or contact your REC sales office, which can be found at: www.recgroup.com/contacts.

LIABILITY DISCLAIMERREC SOLaR PTE. LTD. accepts no liability for the usability and functionality of its photovoltaic panels if the instructions in this guide are not observed. Since compliance with this guide and the conditions and methods of installation, operation, use and maintenance of the panels are not checked or monitored by REC SOLaR PTE. LTD., REC SOLaR PTE. LTD. accepts no liability for damage arising from improper application or incorrect installation, operation or maintenance. This does not apply to damages due to a panel fault, in cases of loss of life, bodily injury or damage to health or in the event of a grossly negligent breach of obligations on the part of REC SOLaR PTE. LTD. and/or in the event of an intentional or grossly negligent breach of obligations by a legal representative or vicarious agent. REC reserves the right to make changes or amendments to this manual at any time, without prior notice.This document may be produced in different languages. If there is any conflict, the English language version shall be definitive.

LIMITED WARRANTYThe REC Limited Warranty is available to download from www.recgroup.com/warranty. Ignoring any of the instructions in this manual may be classed as improper installation or use and invalidate the Warranty Terms and Conditions. If you have any questions about installation and the Warranty validity, please contact RECs technical support.

Caution: Only qualified personnel should perform work on photovoltaic systems such as installation, commissioning, maintenance and repairs. Be sure to follow the safety instructions for all system components. Ensure relevant local codes and regulations for health and safety and accident prevention are observed.

REC Installation Manual - 72-cell Products - IEC 61215 /61730

Rev A - 06.17 Ref: NE-06-214

SaFETY MEaSURESInstallers are responsible for the safe and effective installation and operation of the system and for adhering to all applicable local and national standards and regulations. all relevant local codes and regulations should be referred to and observed as well as regulations on working at heights and fall protection.

SAFETY IN THE WORkINg AREAi) Safety in the working areaInstallation of REC solar panels may involve working on rooftops or raised platforms. Ensure all local regulations regarding working at heights are followed. Before beginning work on a photovoltaic system, ensure all working surfaces are structurally sound and capable of bearing the weight of employees and required equipment.

Remember to isolate the system from the grid before carrying out any maintenance or repair work.

ii) Preventing current generationTo prevent the panels automatically generating current (electricity) when exposed to light, shield the system with a non-transparent cover during installation, maintenance or repair work.

iii) Specific hazards of DC electricitySolar panels generate direct current (DC). Once current is flowing, breaking or opening a connection (e.g., disconnecting two panels) can cause an electrical